too many aliens?

I've thought that they could have done more simply by hiring actors/actresses who were not of standard body size. Painfully thin, or unusually tall, or huge bulky people, hire children to depict alien adults.

I sometimes got annoyed by the slightly-modified-alien-of-the-week formula that crept into VOYAGER. But I still liked the show.

One piece of trivia I picked up from a behind the scenes feature somewhere: during the period when they had two TV series in production at the same time, the STAR TREK make-up department was buying liquid latex for facial appliances by the 55-gallon drum. That's a lot of foreheads.

Totally disagree! Of course, many were over-the-head, non-articulated masks, so they were destined to remain in the background (like Morn in DS9), but I loved them, and their ambassadorial robes as well.